KR20030016445A - A case system of personal Digital Assistant having a wireless communication function - Google Patents

Abstract

PURPOSE: A PDA(Personal Digital Assistant) case system having a wireless communication function is provided to enable wireless data communication by automatically connecting to a modem in the PDA without a cable if the PDA is installed to the case system, and to integrate the modem with the PDA without exposing the cable to outside. CONSTITUTION: The modem(6) modulates/demodulates data for the wireless communication. A controller(103) controls the PDA to transmit/receive the data through the modem(6). An interface(101) interfaces the input/output data between the PDA and the modem(6). An EEPROM(Electronically Erasable and Programmable ROM)(104) stores the information regulating an operation of the interface(101). An antenna(102) transmits/receives a signal by converting an output signal of the modem(6) into a wireless mode. The EEPROM(107) stores the information of the case system. A ring signal part(110) informs reception of a telephone. A microphone/speaker(106) inputs/outputs a voice signal. A Codec(105)(Coder and decoder) processes the voice signal inputted from the microphone/speaker(106).

Description

A case system of personal Digital Assistant having a wireless communication function

The present invention relates to a personal digital assistant (PDA) case system, and more particularly, by installing a modem inside a terminal case in which an information terminal is mounted, and installing a case system in an information terminal to automate stock quotes and business management. The present invention relates to an information terminal case system having a wireless communication function for transmitting and receiving data such as transportation, inventory management, convenience facilities and public safety management, and financial insurance.

In general, the information terminal is abbreviated as PDA and is referred to as a portable information terminal.

The information terminal is a smaller computer, much smaller than a notebook, and has significantly more computer power than an electronic notebook.

Since the overall size is small, the size of the display device (LCD) is limited, and it is based on a pen input for writing by using a pen to recognize characters.

Personal information management programs such as schedule management, address book, notepad, etc. are provided as standard, and you can exchange data freely through a connection with a PC. In addition to the built-in programs, you can install and use a new program.

Recently, with the development of wireless communication, Internet access through PDA is possible, and PDA is newly pioneering wireless internet field.

Such information terminal improves inefficient method of personal information management through basically provided programs and additional applications, and also provides personal information management program for PC corresponding to personal information management programs of PDA. By connecting PC and PC, it supports modification, addition and backup of inputted information, suggesting a new level of personal information management plan.

PDAs also allow you to connect to your mobile phone on the go regardless of location.

The main functions of the Internet, such as web page search, e-mail transmission, PC communication, and stock trading, are available on PDAs.

However, in the related art, the information terminal and the mobile phone have to be connected by a separate cable, which is cumbersome to use.

In other words, it is very inconvenient to carry and very inconvenient to use because it has to carry a phone and information terminal at the same time.

In addition, the mobile phone serves as a kind of terminal for wireless data communication, but since the mobile phone and the information terminal are sold separately from each other, there is a hassle of connecting them with a cable.

Also, in order to perform wireless data communication with an information terminal, a cell phone is required, so an expensive cell phone must be purchased, and the use of the information terminal is fixed by holding the cell phone in a separate place and holding the information terminal by hand. There was this.

Meanwhile, a method of embedding various functions in the information terminal as well as the function of the mobile phone has been studied, but this increases the volume of the information terminal, which reduces the portability which is a characteristic of the information terminal.

In addition, in the case of an integrated type, it is expensive to purchase the integrated terminal.

The technical problem of the present invention is to solve the disadvantages of the prior art. If only the information terminal case system is purchased and the information terminal is attached to the case system, the information terminal is automatically connected to the modem in the case system without a separate cable and wireless data. The present invention provides an information terminal case system having a wireless communication function that is easy to use because communication is possible and the modem and the information terminal are integrated without the cable being exposed to the outside.

1 is a block diagram of an information terminal case system having a wireless communication function according to an embodiment of the present invention;

2 is an exploded perspective view of an information terminal case system having a wireless communication function according to an embodiment of the present invention;

3 is a side cross-sectional view of an information terminal case system having a wireless communication function according to an embodiment of the present invention;

Figure 4 is a perspective view of the coupling state of the information terminal case system having a wireless communication function according to an embodiment of the present invention

An information terminal case system having a wireless communication function according to an aspect of the present invention for achieving the technical problem,

In the information terminal case system that the information terminal is detached,

A control unit which controls an interface so that the information terminal transmits and receives data;

An interface unit to interface input / output data of an information terminal according to a control signal of the controller;

A modem for modulating and demodulating data input and output through the interface unit in accordance with a wireless communication environment;

And an antenna for converting and transmitting the output signal of the modem to a radio, and converting the signal received wirelessly to a wire and transmitting the converted signal to the modem.

An information terminal case system having a wireless communication function according to another aspect of the present invention for achieving the above object,

In an information terminal case system in which guide pieces for supporting an information terminal are provided on both sides of the front surface, and the information terminal is detachable,

A modem for wireless communication;

An antenna for converting and transmitting the output signal of the modem to a radio, and converting the signal received wirelessly to a wire and transmitting the converted signal to the modem;

It is connected to the modem and the cable, and includes a connector that is connected to the circuit terminal and the bottom of the information terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an information terminal case system having a wireless communication function according to an embodiment of the present invention.

As shown in Figure 1, the information terminal case system having a wireless communication function according to an embodiment of the present invention,

In the information terminal case system that the information terminal is detached,

A modem 6 for demodulating data for wireless communication;

A control unit (103) for controlling the information terminal to transmit and receive data through the modem;

An interface unit 101 for interfacing input / output data between the information terminal and the modem;

An ypyrom (104) for storing information defining the operation of the interface unit;

An antenna (102) for translating and transmitting the output signal of the modem (6) wirelessly;

A battery 9 for supplying power when no power is supplied;

An adapter connection unit 109 for receiving power from an external adapter and supplying power to the information terminal and the system;

A charging unit 108 controlling to charge the battery 9 with power input from the adapter connection unit 109;

Y-pyrom 107 for storing the information of the case system; Ring signal unit 110 for notifying the reception of the telephone;

A handset 106 for inputting and outputting a voice signal;

It includes a codec 105 for processing the audio signal input and output from the handset 106.

Then, the operation of the information terminal case system having a wireless communication function according to an embodiment of the present invention having such a configuration in detail as follows.

First, when power is applied by the user, power is applied to the charging unit 108 from an external adapter.

Then, the charging unit 108 applies power to each device. In addition, the charging unit 108 charges the battery 9 and simultaneously supplies power to the external information terminal 1 through the connector 7.

In addition, when the battery 9 is discharged, the charging unit 108 charges the battery 9.

On the other hand, when the adapter is not connected, the battery 9 supplies power to each device.

Then, the information terminal 1 reads information such as the type of the case system, the program used, and the like from the EPI 107. At this time, the use program is a program used in the control unit 103 of the present system.

Thereafter, the information terminal 1 outputs a control signal for wireless communication.

Then, the control signal is transmitted to the control unit 103 through the connector 7, and the control unit 103 adjusts the interface unit 101 to output the control signal to the modem 6.

At this time, the interface unit 101 interfaces the signal between the information terminal 1 and the case system 4 according to the operation defined in the YPROM 104.

Therefore, communication between the modem 6 and the information terminal 1 becomes possible.

Subsequently, the modem 6 operates according to the command of the information terminal 1, and the modem 6 converts a signal according to a wireless environment and activates a radio channel with a corresponding base station through the antenna 4.

In this state, the operation in the case where the voice call function is selected by the information terminal 1 is as follows.

First, in a voice call transmission, if a corresponding control signal is received from the information terminal 1 through the connector 7, the control unit 103 applies a control signal for activating communication with the modem 6 to the interface unit 101. do.

Then, the interface unit 101 activates communication with the modem 6 through a series of operations according to the control signal.

Thereafter, the modem 6 generates a transmission signal in accordance with the command input from the information terminal 1.

When the call is made after the transmission signal is generated, the user makes a voice call using the handset 106 provided in the case system 4.

Then, the voice signal of the handset 106 is processed through the codec 105 and transferred to the modem 6 to make a voice call.

On the other hand, when a voice call is received, when a signal input through the corresponding wireless network is received by the modem 6 of the case system 4, a ring signal is generated in the ring signal unit 110.

Then, the call can be made using the voice call key or the ear microphone provided in the handset 8 through the voice processing of the codec 105.

At this time, the voice call reception function is possible because power is supplied to the case system 4 even when the information terminal 1 is turned off.

It is also possible to modify the power supply to the modem 6, the ring signal section 110, the codec 105 and the handset 106 so that the case system 4 can be turned off.

In addition, the embodiment of the present invention may be designed such that the power is supplied only to the modem 6 and the power is supplied to the signal unit 110, the codec 105, and the handset 106 when a telephone reception signal is generated. .

Therefore, the user can make a call even when the power is off.

In addition, the operation of the wireless data communication function is as follows.

Communication between the interface unit 101 and the modem 6 is activated through a series of operations as in the voice call described above.

Then, the modem 6 is connected to the wireless data network according to a series of standards, and the signal input through the connected modem is input to the information terminal 1 through communication with the interface unit 101, thereby wireless data communication. Function becomes possible.

In addition, in the embodiment of the present invention, the charging unit 108 provided in the case system 4 adjusts the power supplied through the adapter connection unit 109 to control the charging of the battery 9 or to supply the operating power of each equipment. It is also possible.

In particular, since the power input through the adapter connection unit 12 is also simultaneously input to the power terminal of the information terminal 1 through the connector 7 to supply the charging power of the information terminal (1).

Therefore, the battery of the information terminal 1 and the case system 4 can be charged simultaneously.

The embodiment of the present invention of the above process will be described in more detail from a structural point of view.

2 is an exploded perspective view of an information terminal case system having a wireless communication function according to an embodiment of the present invention;

3 is a side cross-sectional view of an information terminal case system having a wireless communication function according to an embodiment of the present invention.

An embodiment of the present invention shows a case system 4 having an information terminal 1 and to which the information terminal 1 is mounted.

The information terminal 1 is provided with a display unit 2 for displaying information such as letters, pictures, and numbers on the front side, and a terminal 3 for connecting a communication line at the bottom thereof.

Although not shown in the drawing, the side of the information terminal 1 includes an operation unit such as an ON / OFF button, a display lamp, a battery lamp, and an earphone jack.

2 and 3 illustrate only the modem 6 and the battery 9 as dashed lines for convenience of description, the remaining components are also mounted therein, and various components may be modified and installed as necessary. Can be.

That is, only the interface unit 101, the modem 6, the battery 9, etc. may be installed and the size may be reduced and the function may be simplified.

The case system 4 has a modem 6 embedded therein. The modem 6 is a modular radio communication function of the cellular phone and is a wireless modem capable of wireless communication.

And the front of the case system 4 is formed with a guide piece 5 for holding the information terminal 1 protruding, the connector (7) to which the terminal 3 of the information terminal 1 is connected to the lower front of the case system ) Is formed.

The connector 7 and the modem 6 are connected via a cable 8, and when the information terminal 1 is mounted in the case system 4, these terminals 3 and the connector 7 are connected to each other. .

In addition, a battery 9 for operating the modem 6 is located under the case system 4, and a cover for replacing the battery is provided at the rear of the case system 4, respectively.

According to an embodiment of the present invention, the information terminal 1 having functions of stock quotes, sales management automation, transportation and inventory management, convenience facilities and public safety management, and financial insurance, e-mail transmission and reception, etc. When mounted to the case system 4, the information terminal 1 is connected to the modem 6 via the interface unit 6 in a circuit.

Therefore, wireless data communication is possible, and the information terminal 1 and the terminal case 4 are integrated, which makes the use thereof very convenient.

That is, when the information terminal 1 is placed on the front upper side of the case system 4 and inserted, the information terminal 1 is supported by the guide pieces 5 provided on both sides of the front side of the case system 4, and thus the information terminal 1 is supported. The terminal 3 is connected with the connector 7 of the case system 4.

At this time, since the connector 7 is connected to the modem 6 through the control unit 103 and the interface unit 101 through the cable 8, the control unit 103 of the information terminal 1 and the case system 4. And the interface unit 101 and the modem 6 are automatically connected.

Since the cable 8 is embedded in the case system 4, the information terminal 1 and the case system 4 form a body.

Therefore, the use of the information terminal 1 becomes convenient.

The information terminal (1) is to escape from the basic use of personal information management, can be applied to a specific field to maximize the work efficiency, for example as follows.

-Sales management automation

Data collection, data exchange, activity monitoring, work assignment, order entry, billing and customer database access can be handled automatically through PDAs and PDA data collection devices (i.e.CellVic Multi Cradle).

-Transport and inventory management

Rapid access to accurate information collection in today's complex business environment is essential to business success. PDAs can be used for product inventory, job placement and process placement.

-Amenities & Public Safety

Both companies and government organizations are experiencing the dilemma of reducing costs while maintaining quality of service. Increasing efficiency is essential and applicable areas include accident reporting, parking control, emergency services and repairs, meter reading, maintenance and auditing.

-Financial industry

Sales representatives of insurance and mutual fund companies can use PDAs to instantly print and analyze product and price information in front of their customers. Meanwhile, it is possible to collect customer-related information and transmit it to the corporate headquarters.

It can share data with PC / install various applications / connect with mobile phones-E-mail transmission / reception / wireless data (IrDA) communication / personal information management function.

As described above, in an embodiment of the present invention, wireless communication is possible without a separate mobile phone, and a cable for connecting with a mobile phone is unnecessary, which is convenient to use, and an information terminal and a terminal case are integrated, so that the handling is easy. An information terminal case system can be provided.

In particular, since the modem is mounted in the case system, the cable connecting the information terminal and the terminal case is not exposed to the outside, thereby simplifying the configuration.

In addition, the present invention can simultaneously charge the battery of the case system and the battery of the information terminal by the adapter power source, there is an advantage that the charging is convenient.

Claims (9)

In the information terminal case system that the information terminal is detached, A control unit which controls an interface so that the information terminal transmits and receives data; An interface unit to interface input / output data of an information terminal according to a control signal of the controller; A modem for modulating and demodulating data input and output through the interface unit in accordance with a wireless communication environment; And an antenna for converting and outputting the output signal of the modem to wireless, and converting the signal received wirelessly to a wire and transmitting the converted signal to the modem. The method of claim 1, An information terminal case system further comprising a battery for supplying power to the modem, the control unit and the interface unit. The method of claim 2, Information terminal case system further comprises a charging unit for receiving the power to charge the battery. The method of claim 3, And an adapter connection unit for supplying power to the information terminal while simultaneously supplying power to the battery. The method of claim 1, An information terminal case system further comprising an iPyrom which stores information prescribed for the operation of the interface unit. The method of claim 1, A ring signal unit for notifying reception of a call; A handset for inputting and outputting a voice signal; Further comprising a codec for processing the voice signal input and output from the handset, Information terminal case system, characterized in that the minimum power is supplied to the modem, ring signal unit, codec and handset even when the power is off. The method of claim 1, An information terminal case system further comprising an Ipyrom storing information of the case system. In an information terminal case system in which guide pieces for supporting an information terminal are provided on both sides of the front surface, and the information terminal is detachable, A modem for wireless communication; An antenna for converting and transmitting the output signal of the modem to a radio, and converting the signal received wirelessly to a wire and transmitting the converted signal to the modem; An information terminal case system comprising a connector connected to the modem and a cable, the connector is connected to the terminal of the bottom of the information terminal. The method of claim 8, A battery for supplying power to the modem; A charging unit for charging the battery by receiving power; And an adapter connection unit for supplying power to the battery while supplying power to the battery charger.